protected void Page_Load(object sender, EventArgs e)

{

    string result = "";

    string userName = Request.QueryString["UserName"];

    string password = Request.QueryString["Password"];

    if (userName == "admin" && password == "")

    {

        result = "登陆成功";

    }

    else

    {

        result = "登陆失败";

    }

    Response.Write(result);

}

/// <summary>

/// GET请求与获取结果

/// </summary>

public static string HttpGet(string Url, string postDataStr)

{

    HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url + (postDataStr == "" ? "" : "?") + postDataStr);

    request.Method = "GET";

    request.ContentType = "text/html;charset=UTF-8";

    HttpWebResponse response = (HttpWebResponse)request.GetResponse();

    Stream myResponseStream = response.GetResponseStream();

    StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.UTF8);

    string retString = myStreamReader.ReadToEnd();

    myStreamReader.Close();

    myResponseStream.Close();

    return retString;

}

static void Main(string[] args)

{

    string url = "http://www.mystudy.cn/LoginHandler.aspx";

    string data = "UserName=admin&Password=123";

    string result = HttpGet(url, data);

    Console.WriteLine(result);

    Console.ReadLine();

}

protected void Page_Load(object sender, EventArgs e)

{

    string result = "";

    string userName = Request.Form["UserName"];

    string password = Request.Form["Password"];

    if (userName == "admin" && password == "")

    {

        result = "登陆成功";

    }

    else

    {

        result = "登陆失败";

    }

    Response.Write(result);

}

/// <summary>

/// POST请求与获取结果

/// </summary>

public static string HttpPost(string Url, string postDataStr)

{

    HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url);

    request.Method = "POST";

    request.ContentType = "application/x-www-form-urlencoded";

    request.ContentLength = postDataStr.Length;

    StreamWriter writer = new StreamWriter(request.GetRequestStream(),Encoding.ASCII);//注意编码方式

    writer.Write(postDataStr);

    writer.Flush();

    HttpWebResponse response = (HttpWebResponse)request.GetResponse();

    string encoding = response.ContentEncoding;

    if (encoding == null || encoding.Length < ) {

        encoding = "UTF-8"; //默认编码

    }

    StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.GetEncoding(encoding));

    string retString = reader.ReadToEnd();

    return retString;

}

static void Main(string[] args)

{

    string url = "http://www.mystudy.cn/LoginHandler.aspx";

    string data = "UserName=admin&Password=123";

    string result = HttpPost(url, data);

    Console.WriteLine(result);

    Console.ReadLine();

}